Brake booster
Thread Starter
Pro
Joined: Nov 2011
Posts: 517
Likes: 20
From: Scroggins Tx
Brake booster
I have no power brakes and all in car test point to a bad booster. I just removed the booster and I am now trying to bench test it
With pump on there is little or no vacuum on gauge, but I can plug the master cylinder hole and I get vacuum.
Is this normal and if so, should there be an air tight seal between mc and booster? When I removed the mc there was no sealing gasket. Thanks.
With pump on there is little or no vacuum on gauge, but I can plug the master cylinder hole and I get vacuum.
Is this normal and if so, should there be an air tight seal between mc and booster? When I removed the mc there was no sealing gasket. Thanks.
Thread Starter
Pro
Joined: Nov 2011
Posts: 517
Likes: 20
From: Scroggins Tx
After some more google searches I found the answer. This rubber washer seals around this rod and holds the vacuum in. Mine was so worn it didn't look like a seal. From what I could find out it is not reproduced.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
If the seal is all you need, there is a guy, Booster Dewy, on the west coast that will sell the front seal. Google him, I sent him cash in a sase and got a seal back in the mail in a week or so.
